LiBOB合成及其在锰酸锂高温型电解液中的应用

doi:10.3969/j.issn.1007-2985.2012.03.020

journal6 ›› 2012, Vol. 33 ›› Issue (3): 86-89.DOI: 10.3969/j.issn.1007-2985.2012.03.020

LiBOB合成及其在锰酸锂高温型电解液中的应用

（中南大学冶金科学与工程学院，湖南长沙 410083）

出版日期:2012-05-25 发布日期:2012-08-24
通讯作者: 李新海(1961-),男,湖南邵阳人,中南大学冶金科学与工程学院教授,博士,博士生导师,主要从事湿法冶金及锂电池研究；E-mail:wxwcsu2011@163.com.
作者简介:吴贤文（1983-），男，湖南张家界人，中南大学博士生，主要从事湿法冶金及新能源材料研究
基金资助:
湖南省科技重大项目计划（2011FJ1005）；湖南省博士研究生科研创新项目(1960-71131110033)

Synthesis of LiBOB and Its Application in the System of Electrolyte of LiMn₂O₄ at Elevated Temperature

(School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China)

Online:2012-05-25 Published:2012-08-24

摘要/Abstract

摘要：为提高锰酸锂的高温循环性能，以草酸、硼酸、氢氧化锂为原料，用固相法合成锂盐LiBOB；并利用X射线衍射（XRD）、扫描电子显微镜（SEM）、傅立叶变换红外光谱仪（FTIR）、热重-差热分析（TG-DTA）对锂盐结构、形貌及热稳定性进行表征和测试；研究了LiBOB/EC+PC+EMC体系对锰酸锂高温循环性能的影响.实验结果表明，LiBOB具有良好的结晶性和热稳定性，1 C倍率下锰酸锂电池高温循环200次后，容量保持率为97.15%.

关键词： LiBOB, 锰酸锂, 电解液, 循环性能

Abstract: In order to improve the cycling performance of LiMn₂O₄ at elevated temperature,LiBOB was synthesized with solid state method using oxalic acid,boric acid and lithium hydroxide as raw materials,and the structure,morphology and thermal stability of lithium salt were characterized and measured by XRD,SEM,FTIR and TG-DTA,respectively.Meanwhile,effect of LiBOB/EC+PC+EMC on the cycling performance of LiMn2O4 at elevated temperature was studied,and the results show that LiBOB has good crystallinity and thermostability,after 200 cycles,the LiMn2O4/Li cell retained 97.15% of its initial discharge capacity at 1 C-rate after cycled at elevated temperature.

Key words: LiBOB, LiMn₂O₄, electrolyte, cycling performance

吴贤文, 蒋剑波, 李新海, 陈小原. LiBOB合成及其在锰酸锂高温型电解液中的应用[J]. journal6, 2012, 33(3): 86-89.

WU Xian-Wen, JIANG Jian-Bo, LI Xin-Hai, CHEN Xiao-Yuan. Synthesis of LiBOB and Its Application in the System of Electrolyte of LiMn₂O₄ at Elevated Temperature[J]. journal6, 2012, 33(3): 86-89.

参考文献

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LiBOB合成及其在锰酸锂高温型电解液中的应用

Synthesis of LiBOB and Its Application in the System of Electrolyte of LiMn₂O₄ at Elevated Temperature

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LiBOB合成及其在锰酸锂高温型电解液中的应用

Synthesis of LiBOB and Its Application in the System of Electrolyte of LiMn2O4 at Elevated Temperature

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Synthesis of LiBOB and Its Application in the System of Electrolyte of LiMn₂O₄ at Elevated Temperature